ARRL: “Scanning RF Seismograph” Monitors HF Propagation in Real Time

A “Scanning RF Seismograph,” a real-time HF propagation-monitoring tool developed by the MDSR Team and Alex Schwarz, VE7DXW, of the North Shore Amateur Radio Club (NSARC), has been established in Western Canada. The site is in Lynn Valley (CN89li), North Vancouver, British Columbia, at 500 feet ASL.

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